Product OverviewOutstanding Flexibility and SilenceThe be quiet! Dark Base 900 PC case is the perfect choice for all of those who expect the highest standards when it comes to modularity, compatibility and design.

MB-trayThe motherboard tray can be repositioned vertically, to suit individual space requirements, or installed alongside the left panel with redefined airflow. It is removable for use as a bench table.

HDD slotsFlexible installation options thanks to repositionable single HDD slots. Support for up to 7 HDDs, 15 SSDs and 2 optical drives.

Side panelAdjustable side panel cover that you can close for absolute silence, partly open for more air intake, or completely open with the possibility to mount up to two optional fans.

Full circuit airflow systemInnovative noise-reducing vents all around the case result in an effective full circuit airflow.

Ideal for:• High-end workstations and desktop PCs.• High-resolution gaming and multimedia systems.• Extremely overclocked systems.• Super silent water-cooled PCs. Features
• Fully versatile thanks to modular construction, offering an relocatable motherboard tray, repositionable HDD slots, support for even E-ATX and XL-ATX as well as the possibility of an inverse layout.• Three pre-installed SilentWings 3 140mm PWM fans featuring a smooth-running 6-pole motor, fluid-dynamic bearing and funnel-shaped air inlets.• Manual stepless fan controller supports up to three PWM and three 3-pin fans.• Effective full circuit airflow system with innovative noise-reducing vents all around the case.• Completely sound insulated case with decoupled elements for motherboard tray, power supply and drives.• Four areas for water cooling radiators up to 420mm on top, front, back and base of the case.• 2-in-1 side panel vent can be closed for silent operation or opened for two additional fans.• 3-year manufacturer's warranty.• Product conception, design and quality control in Germany.

The modern PC is potentially a mass of heat output and heat production hot spots. With CPUs rated at more than 100W of heat output, single graphics boards carrying similar ratings (and people want to run two!), multiple hard drives the norm, lots of memory and mainboards covered in heatpipes to combat toasty core logic and PWM circuits, a PC appreciably warming up a room when it’s working hard is no joke.

Watercooling for the PC has been around for years in some form or another, for at least as long as Scan have been in business, with basic physics defining why you want to use it. That means for air cooling, to cope with increasing temperature in the heatsink you need to move the air across it faster. That is why thermostatically controlled fans in your PC will turn faster the hotter something gets.